Magnetism and Electromagnetism In the left hand rule, forefinger always represents current Voltage magnetic field direction of force on the conductor current Voltage magnetic field direction of force on the conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 2,000 V 31.25 V 3,125 V 1,000 V 2,000 V 31.25 V 3,125 V 1,000 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by All of the listed here Increasing the cross-sectional area Increasing the number of turns Increasing current supply All of the listed here Increasing the cross-sectional area Increasing the number of turns Increasing current supply ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Susceptibility is positive for diamagnetic substances ferromagnetic substances None of these non-magnetic substances diamagnetic substances ferromagnetic substances None of these non-magnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb? 14,400 At/Wb 1,440 At/Wb 9,000 At/Wb 90,000 At/Wb 14,400 At/Wb 1,440 At/Wb 9,000 At/Wb 90,000 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit of relative permeability is Its dimensionless None of the listed here Hennry/meter Hennry Its dimensionless None of the listed here Hennry/meter Hennry ANSWER DOWNLOAD EXAMIANS APP
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